Journal ArticleDOI
Exceptionally high Young's modulus observed for individual carbon nanotubes
TLDR
In this article, the amplitude of the intrinsic thermal vibrations of isolated carbon nanotubes was measured in the transmission electron microscopy (TEM) and it was shown that they have exceptionally high Young's moduli, in the terapascal (TPa) range.Abstract:
CARBON nanotubes are predicted to have interesting mechanical properties—in particular, high stiffness and axial strength—as a result of their seamless cylindrical graphitic structure1–5. Their mechanical properties have so far eluded direct measurement, however, because of the very small dimensions of nanotubes. Here we estimate the Young's modulus of isolated nanotubes by measuring, in the transmission electron microscope, the amplitude of their intrinsic thermal vibrations. We find that carbon nanotubes have exceptionally high Young's moduli, in the terapascal (TPa) range. Their high stiffness, coupled with their low density, implies that nanotubes might be useful as nanoscale fibres in strong, lightweight composite materials.read more
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Physical properties of elongated inorganic nanoparticles
Roman Krahne,Giovanni Morello,Albert Figuerola,Chandramohan George,Sasanka Deka,Liberato Manna,Liberato Manna +6 more
TL;DR: In this article, the physical properties of rod-like or wire-like inorganic nanoparticles are described, where the shape of the nanoparticles evolves from spherical to rodlike.
Journal ArticleDOI
Thermal properties of CNT-Alumina nanocomposites
TL;DR: In this article, the thermal properties of carbon nanotube-alumina composites have been investigated as a function of CNT content and the sintering temperature, and the notably enhanced thermal properties were achieved including a heat capacity of 6.09 −J/g/k at 400 −°C in the 19.10 −W/mK CNT-Al 2 O 3 nanocomposites sintered at 1450 −C, and a thermal diffusivity of 13.98 −mm 2 /s.
Journal ArticleDOI
Diffusion flame synthesis of single-walled carbon nanotubes
TL;DR: In this paper, a simple laboratory-scale diffusion flame is demonstrated for the synthesis of single-wall nanotubes via a simple single-dimensional diffusion flame, and the results using different hydrocarbon reagents, the effects of dilution with an inert, the role of hydrogen and processes likely responsible for the deactivation of the catalyst particles are illustrated and discussed.
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Coiled carbon nanotubes: Synthesis and their potential applications in advanced composite structures
TL;DR: A critical review on the synthesis of the coiled carbon nanotubes and their applications in advanced composites is given in this article, where a critical review of the nanotube synthesis and their application in advanced composite is given.
Journal ArticleDOI
Functional interphases with multi-walled carbon nanotubes in glass fibre/epoxy composites
TL;DR: In this article, multi-walled carbon nanotubes (MWCNTs) were deposited onto electrically insulating glass fibre surfaces leading to the formation of semiconductive MWCNTs and in turn multifunctional fibre/polymer interphases.
References
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Book
Advanced Engineering Mathematics
TL;DR: This book discusses ODEs, Partial Differential Equations, Fourier Series, Integrals, and Transforms, and Numerics for ODE's and PDE's, as well as numerical analysis and potential theory, and more.
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Large-scale synthesis of carbon nanotubes
TL;DR: In this article, the authors used a variant of the standard arc-discharge technique for fullerene synthesis under a helium atmosphere, where a carbonaceous deposit formed on one of the graphite rods, consisting of a macroscopic (diameter of about 5 mm) cylinder.
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Advanced Engineering Mathematics. ByErwin Kreyszig. Pp. xx, 899. 68s. (Wiley.)
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Energetics of Nanoscale Graphitic Tubules
TL;DR: It is found that the strain energy per carbon relative to an unstrained graphite sheet goes as the inverse square of the tubule radius, R, and is insensitive to other aspects of the lattice structure, indicating that relationships derivable from continuum elastic theory persist well into the small radius limit.
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Growth, Structure, and Properties of Graphite Whiskers
TL;DR: Graphite whiskers have been grown in a dc arc under a pressure of 92 atmospheres of argon and at 3900°K as discussed by the authors, with recoverable lengths up to 3 cm. They are embedded in a solid matrix of graphite which builds up by diffusion of carbon vapor from the positive to the negative electrode.